This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A103914 #4 Jun 16 2016 23:27:27 %S A103914 9,203,10767,46061,475793,6668731,13845629,91598867,266769639, %T A103914 435522233,1078275557,3609658883,10468384561,14540796059,36461681717, %U A103914 64117563369,83947073543,180056219381,289521339853,564930693271,1283176845407 %N A103914 Negative of column k=9 sequence of array A103728. %C A103914 The two a(n) formulas, given below, produce natural numbers for all n>=0. %F A103914 a(n)=-A103728(n+5, 9)=-(1 -(p(n+5)-1)*binomial(p(n+5)-1, 9))/p(n+5), with p(n):=A000040(n) (n-th prime). %F A103914 a(n)= -(1389456 - 2199276*p(n+5) + 1896380*p(n+5)^2 - 993005*p(n+5)^3 + 332598*p(n+5)^4 - 72723*p(n+5)^5 + 10320*p(n+5)^6 - 915*p(n+5)^7 + 46*p(n+5)^8 - p(n+5)^9)/9! = -sum(A103718(k, m)*p(n+5)^m, m=0..9)/9!. %Y A103914 Cf. A103735 (k=8). %K A103914 nonn,easy %O A103914 0,1 %A A103914 _Wolfdieter Lang_, Feb 24 2005